Oki IP-6620 - Page 159

OKI Data Infotech Corporation CONFIDENTIAL
Chapter 4 Troubleshooting (General)
4-6
< The media is curled or wrinkled >
Symptom
User Solution
Service Engineer
Inspection
Assumed
Replacement Part
Reference
to Check/
Replace
Parts
Outside the
operating
temperature/humidit
y range
(1) Use the printer within the operating temperature/humidity range.
* Note that some media may wrinkles even within the operating
temperature and humidity range.
(2) Use proven media.
- Check that the pinch roller
is not damaged.
- Check that the pinch roller
spring is not missing.
PINCH ROLLER, MW
The media storage
conditions are not
the same as the
printer operating
conditions.
If there is a difference between the media storage conditions and the
printer operating conditions, leave the media for a while in the new
environment before printing.
* The time depends on the media type and the storage conditions.
The media was not
installed properly.
Check that the media was installed properly in the conditions below.
- The media is installed parallel to the printer.
- The operation panel shows the media type correctly.
- The media winding mode is optimal for the installed media.
- Check that the leading edge of the media output from the printer is
installed straight to the TUR unit paper tube.
The media wrinkled
because of the
heater temperatures
(1) If the media wrinkles while the printer is warmed by the heaters,
install the media only after the printer is warmed up by the
heaters.
(2) Change the heater temperature. Decrease all three heaters in
increment of 5°C.*
1
(3) Use proven media.
(4) If the media is still wrinkled, feed the media until you reach a
portion without wrinkles.
(5) If the media wrinkles between each print job, change the media
advance mode.
*
1
When the heaters temperatures are changed, adjust the media
advance adjustment value again.
The media is curled.
(1) Do not use media curled in the vertical direction (vertical to the
media).
(2) Do not use media curled in the horizontal direction (from the right
edge to left edge) if it is so curled that the media edge guards and
the suction fan cannot flat the media.
(3) Use proven media.
The suction fan
parameter of the
preset is LOW.
Set the suction fan parameter of the preset to a stronger setting.
Wrinkles caused by
media advance
(1) Remove the media and install it again.
(2) Use proven media.